John Deere 7800 (A)
Built: 1992–1997 · Series: 7000er-Baureihe
More machines from model year 1992
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John Deere 7000er-Baureihe – high-power field tractors from Waterloo: types 7200 to 7800, six-cylinder diesels of 5,879 to 7,627 cm³, 75.1 to 125.1 kW, unladen weights up to 6,590 kg
John Deere builds the 7000 series, high-power field tractors from the 1990s, at its Waterloo plant in the US state of Iowa; the types 7200, 7400, 7700 and 7800 recorded in the register carry the A suffix denoting the Waterloo production site. Unlike the smaller Augusta-built series, the 7000 series relies exclusively on six-cylinder engines to meet the higher power demand of professional field agriculture.
Read on 3 more paragraphs
The register lists 4 versions with 75.1 to 125.1 kW from six-cylinder diesel engines throughout, of 5,879 to 7,627 cm³ displacement, unladen weights from 5,744 to 6,590 kg and a rated speed of 2,100 rpm throughout; lengths range from 4,435 to 4,800 mm, widths from 2,438 to 2,808 mm, heights from 2,880 to 3,080 mm.
The 7000 series positioned John Deere in the 1990s in the segment of large field tractors for professional operations with substantial acreage, aimed at users who depended on high engine power and pulling force for tillage, seeding and heavy towed implements, competing with comparable ranges from Case IH, Fendt and Massey Ferguson.
On a used 7000-series tractor, the condition of the six-cylinder diesel engine and the clutch, the tightness of the gearbox, axles and hydraulics, rust on the frame and mudguards, and the mileage and service history all count; parts are well available through John Deere's dense dealer network.
Sources: SpecCodex register, model data: John Deere 7000er-Baureihe, John Deere (manufacturer)
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 170 hp (125.1 kW)correct |
| Rated speed | 2,100 rpmcorrect |
| Cylinders | 6correct |
| Displacement | 7,627 cm³correct |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 4,800 mmcorrect |
|---|---|
| Width | 2,500 mmcorrect |
| Height | 3,080 mmcorrect |
| Wheelbase | 2,800 mmcorrect |
| Ground clearance | 628 mmcorrect |
| Unladen weight | 6,590 kgcorrect |
Drivetrain and chassis
| Drive | rear- or four-wheel drivecorrect |
|---|---|
| Gearbox | 19V/7R, 16V/12R and 20V/12Rcorrect |
| Front tyres | 11.00-16 ASF (A: 14.9 R 30 AS)correct |
| Rear tyres | 18.4 R 42 AScorrect |
| Top speed | 30 km/hcorrect |
Origin and approval
| Construction | bridge-frame constructioncorrect |
|---|
Where this model stands
Power-to-weight ratio: 19 kW/t (125 kW / 6.6 t)
Power class: Large (100–180 hp)
Stronger than 87% of the tractors in the register — out of 15,663 models with a stated power figure.
Calculated from the documented figures above — not a rating.
Frequently asked questions
How much power does the John Deere 7800 (A) have?
The John Deere 7800 (A) delivers 170 hp.
How much does the John Deere 7800 (A) weigh?
The unladen weight is 6,590 kg.
What engine does the John Deere 7800 (A) have?
6 cylinders, 7,627 cm³ displacement, Diesel.
How fast does the John Deere 7800 (A) go?
Top speed is 30 km/h.
What are the dimensions of the John Deere 7800 (A)?
4,800 mm × 2,500 mm × 3,080 mm.
When was the John Deere 7800 (A) built?
Production years: 1992–1997.
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Check the weights in the papers against the figures here — attachments change them.
- Check front and rear tyre sizes: mismatched pairs strain the drivetrain.
- Shift the gearbox cold and warm — jumps only show up at temperature.
- Load the hydraulics and watch for sag.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
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This page carries 19 individual figures for this model. They come from 1 recorded source; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
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Other models in this series
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